A non-invasive silent ventilator

Abstract

The invention provides a noninvasive silent breathing machine. The noninvasive silent breathing machine comprises a base, wherein a silent airway module and a humidifying device are mounted on the base; the silent airway module comprises an air storage room and a converging room; the converging room is provided with at least two separate flow airway inlets, at least two airway baffles and a flow converging area; an air inlet of the air storage room communicates with the separate flow airway inlets; the airway baffles separate the flow converging room into at least two separate flow airways, and the at least two separate flow airways realize converging towards the converging area; the converging points of all the separate flow airways communicate with an air inlet of an air blower, the sumsof the cross sectional areas of the separate flow airways are the same, and the flow directions of the airways of all the separate flow airways are in forward rotation or backward rotation; the crosssectional area of the converging area is 1-1.5 times of that of the air inlet of the air blower; the sum of the cross sectional areas of all the separate flow airway inlets is 1-1.5 times of the cross sectional area of the air inlet of the air storage room; an airway conversion structure is arranged between the silent airway module and the humidifying device, and the space of the inlet end of a change-over airflow channel of the airway conversion structure is smaller than the space of the outlet end.

Description

technical field [0001] The invention belongs to the field of medical equipment, and in particular relates to a non-invasive ventilator, in particular to a non-invasive silent ventilator. Background technique [0002] In recent years, with the aggravation of environmental pollution (haze) and the existence of special types of work (workers exposed to dust working environment), more and more pneumoconiosis and respiratory lung diseases have occurred. Therefore, the use of non-invasive ventilators rate increased significantly. At the same time, ventilators tend to be small, light, and comfortable to use. Among them, comfort mainly includes the comfort of the user's breathing and the quietness (low noise) of the machine when it is working. [0003] The common types of non-invasive ventilators mainly provide continuous stable positive pressure ventilation device (CPAP), automatic positive pressure ventilation device (Auto CPAP) and positive pressure ventilation device (Bi-level)...

AI Technical Summary

Problems solved by technology

The disadvantages of the above prior art: 1. The noise reduction structure is in the internal airway, resulting in a bulky airway system; 2. The single long airway makes the airway system unable to change direction flexibly, and increases the impedance of the airway system, thereby Lead to poor accuracy of ventilator flow detection

Images